Field notes, v666
Page 169
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
April 5, 1948, ½-mile W of Adair Village, Benton Co., 3 p.m. Dusky Horned Owl - Charley Cutress took me to a nest he had spotted about, at which time2eggs were present. The "nest" is the open top of a snapped-off Douglas Fir 2½' dia., open on top, and to the east, but "walled in" to the north, west, and south. Height about 25 feet. The snag was a quite open site in old burn and logged-over area, with only a few scattered tall D. Firs in the area, the nearest some 100 feet away. The snag was on a NNE slope, slightly sheltered by the ridge to the south of it. We could spot the nest over a ¼-mile away, and the female was in the niche with the young, but left before we were 1/8 mile away, at least. It stayed in the D. Fir woods nearby and made no sounds until we got to the snag. Then a few "who's" were emitted. As Charley went up the ladder to the nest, both parents started giving various scolding and call notes, one of which was like a "bark"; another not unlike one note the Black-billed Magpie emits. Also they chattered their bills, and the young bird gave a deeper cracking noisy with its bill as we brought the bird to the ground. Its eye sight seemed quite poor, and it observed only bright things in front of its eyes, and fast movements not over a foot or so away. Tarsus was almost fully developed, and do wn-covered. Iris, bright yellow. Contour feathers developing, and primaries to 2½" of feather vane already exposed. Much "powder" present. Length about 10-12". Banded it with size 8, #44-812061. Both parents were in firs less than 100 feet away, the big, dark male with the c lean white chin patch usually quite, but occasionally "who-ing" a little. The female was not quite as large, and was almost a gray-tan, rather than the darker gray-brown of the male. She gave the barking calls previously mentioned. Much feces was on the snag about the top of the nest, and a few recently-acquired pheasant feathers were caught on the sides of the snag, and on the ground around the snag - it was a hen bird. About 50 feet to the east was a 12-15" D. Fir in which an adult bird must roost, for numerous pellets were on the ground around the nest. The more recent ones had such things as the full foot of a pheasant in them. Others the crushed and broken femur, and in another was a part of a pelvis. The adults did not return directly to the nest, altho it began to rain as we left. Band-tailed Pigeons - a pair flew across the hiway into the oak woods near Adair village. Dusky Horned Owl - two in one day is too much, but on the hill to the south of Coffin Butte we spotted an old Redtail Hawk nest 40& feet up in a Big-leaf Maple (buds just breaking), on an open east slope, not over ¼-mile from the highway. The tree stood by itself. Charley clapped his hands and a bird stretched its wings and tail - another horned owl - it flew off presently, flying into the oaks on top of the hill to the west. I climbed to the nest and found, unfortunately, two eggs about 10-12 incubation . Too bad, I wanted to band them. We left then, and went on over the hill, having not attracted both of the owls, only one calling occasionally while I was up the tree. About 15-20 minutes later we returned, and the owl was again on the nest, tho we had taken the eggs. Red-tail Hawk - checked a nest at 30-35 feet in a maple on a north slope, at the lower edge of the oak and brush belt, ½-way up the slope. No sign of life, yet. In this clump of maples was one dead snag, riddled with large holes. In the very top, some 18 feet up, was a nest of flying squirrels. We saw 3 of them. There may have been more.